+ date + echo Sun Aug 14 00:44:32 UTC 2011 TESTING direct-rndrw-32 Sun Aug 14 00:44:32 UTC 2011 TESTING direct-rndrw-32 + date + echo Sun Aug 14 00:44:32 UTC 2011 start iteration 1 Sun Aug 14 00:44:32 UTC 2011 start iteration 1 + sysbench --test=fileio --file-total-size=100G --file-test-mode=rndrw --max-time=180 --max-requests=100000000 --num-threads=32 --init-rng=on --file-num=64 --file-extra-flags=direct --file-fsync-freq=0 --file-block-size=16384 run sysbench 0.4.12: multi-threaded system evaluation benchmark Running the test with following options: Number of threads: 32 Initializing random number generator from timer. Extra file open flags: 16384 64 files, 1.5625Gb each 100Gb total file size Block size 16Kb Number of random requests for random IO: 100000000 Read/Write ratio for combined random IO test: 1.50 Calling fsync() at the end of test, Enabled. Using synchronous I/O mode Doing random r/w test Threads started! FATAL: Failed to read file! file: 44 pos: 1677639680 errno = 0 () FATAL: Failed to read file! file: 14 pos: 1677672448 errno = 0 () FATAL: Failed to read file! file: 53 pos: 1677672448 errno = 0 () Time limit exceeded, exiting... (last message repeated 28 times) Done. Operations performed: 28772 Read, 19194 Write, 0 Other = 47966 Total Read 449.56Mb Written 299.91Mb Total transferred 749.47Mb (4.1456Mb/sec) 265.32 Requests/sec executed Test execution summary: total time: 180.7886s total number of events: 47966 total time taken by event execution: 5368.8999 per-request statistics: min: 0.00ms avg: 111.93ms max: 7978.69ms approx. 95 percentile: 431.08ms Threads fairness: events (avg/stddev): 1498.9375/383.89 execution time (avg/stddev): 167.7781/42.98 + date + echo Sun Aug 14 00:47:33 UTC 2011 start iteration 2 Sun Aug 14 00:47:33 UTC 2011 start iteration 2 + sysbench --test=fileio --file-total-size=100G --file-test-mode=rndrw --max-time=180 --max-requests=100000000 --num-threads=32 --init-rng=on --file-num=64 --file-extra-flags=direct --file-fsync-freq=0 --file-block-size=16384 run sysbench 0.4.12: multi-threaded system evaluation benchmark Running the test with following options: Number of threads: 32 Initializing random number generator from timer. Extra file open flags: 16384 64 files, 1.5625Gb each 100Gb total file size Block size 16Kb Number of random requests for random IO: 100000000 Read/Write ratio for combined random IO test: 1.50 Calling fsync() at the end of test, Enabled. Using synchronous I/O mode Doing random r/w test Threads started! FATAL: Failed to read file! file: 54 pos: 1677639680 errno = 0 () Time limit exceeded, exiting... (last message repeated 30 times) Done. Operations performed: 27691 Read, 18463 Write, 0 Other = 46154 Total Read 432.67Mb Written 288.48Mb Total transferred 721.16Mb (4.0019Mb/sec) 256.12 Requests/sec executed Test execution summary: total time: 180.2053s total number of events: 46154 total time taken by event execution: 5704.1875 per-request statistics: min: 0.00ms avg: 123.59ms max: 7769.66ms approx. 95 percentile: 467.79ms Threads fairness: events (avg/stddev): 1442.3125/98.74 execution time (avg/stddev): 178.2559/10.26 + date + echo Sun Aug 14 00:50:33 UTC 2011 start iteration 3 Sun Aug 14 00:50:33 UTC 2011 start iteration 3 + sysbench --test=fileio --file-total-size=100G --file-test-mode=rndrw --max-time=180 --max-requests=100000000 --num-threads=32 --init-rng=on --file-num=64 --file-extra-flags=direct --file-fsync-freq=0 --file-block-size=16384 run sysbench 0.4.12: multi-threaded system evaluation benchmark Running the test with following options: Number of threads: 32 Initializing random number generator from timer. Extra file open flags: 16384 64 files, 1.5625Gb each 100Gb total file size Block size 16Kb Number of random requests for random IO: 100000000 Read/Write ratio for combined random IO test: 1.50 Calling fsync() at the end of test, Enabled. Using synchronous I/O mode Doing random r/w test Threads started! FATAL: Failed to read file! file: 44 pos: 1677672448 errno = 0 () Time limit exceeded, exiting... (last message repeated 30 times) Done. Operations performed: 28919 Read, 19282 Write, 0 Other = 48201 Total Read 451.86Mb Written 301.28Mb Total transferred 753.14Mb (4.181Mb/sec) 267.59 Requests/sec executed Test execution summary: total time: 180.1322s total number of events: 48201 total time taken by event execution: 5677.2726 per-request statistics: min: 0.00ms avg: 117.78ms max: 7031.39ms approx. 95 percentile: 461.80ms Threads fairness: events (avg/stddev): 1506.2812/138.26 execution time (avg/stddev): 177.4148/14.63 + date + echo Sun Aug 14 00:53:34 UTC 2011 start iteration 4 Sun Aug 14 00:53:34 UTC 2011 start iteration 4 + sysbench --test=fileio --file-total-size=100G --file-test-mode=rndrw --max-time=180 --max-requests=100000000 --num-threads=32 --init-rng=on --file-num=64 --file-extra-flags=direct --file-fsync-freq=0 --file-block-size=16384 run sysbench 0.4.12: multi-threaded system evaluation benchmark Running the test with following options: Number of threads: 32 Initializing random number generator from timer. Extra file open flags: 16384 64 files, 1.5625Gb each 100Gb total file size Block size 16Kb Number of random requests for random IO: 100000000 Read/Write ratio for combined random IO test: 1.50 Calling fsync() at the end of test, Enabled. Using synchronous I/O mode Doing random r/w test Threads started! Time limit exceeded, exiting... (last message repeated 31 times) Done. Operations performed: 27280 Read, 18199 Write, 0 Other = 45479 Total Read 426.25Mb Written 284.36Mb Total transferred 710.61Mb (3.9437Mb/sec) 252.40 Requests/sec executed Test execution summary: total time: 180.1881s total number of events: 45479 total time taken by event execution: 5762.8334 per-request statistics: min: 0.00ms avg: 126.71ms max: 7337.61ms approx. 95 percentile: 496.65ms Threads fairness: events (avg/stddev): 1421.2188/53.69 execution time (avg/stddev): 180.0885/0.05 + date + echo Sun Aug 14 00:56:34 UTC 2011 DONE TESTING direct-rndrw-32 Sun Aug 14 00:56:34 UTC 2011 DONE TESTING direct-rndrw-32 + sleep 45 + date + mail -s rndrw benchmarks done tsuna@stumbleupon.com